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Find x

Pls help me.

Find x Pls help me.-example-1
User Dortzur
by
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1 Answer

9 votes

Answer:

109

Explanation:

as we can see x is an outer exterior angle and according to its property sum of an interior angle and an outer exterior angle = 180

The interior angle is 40+31 = 71

71 + x = 180

x = 180 -71

therefore x = 109

User Hossein Salmanian
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